Radio tube extractor



T. E. CASSELBERRY RADIO TUBE ExmAcToR June 22, 1943.

Filed Jan. 5 1943 van/rag 77950450: ffikosszsemer 4rmAM/e Y PatentedJune 22, 1943 UNITED STATES PATENT OFFICE (Granted under the act ofMarch 3, 1883, as amended April 30, 1928; 370 0. G. 757) 2 Claims.

The invention described herein may be manufactured and used by or forthe Government for governmental purposes, without the payment to me ofany royalty thereon.

This invention relates to manually operatable tools. Especially toolsadapted for handling metal radio tubes.

An object of the invention is to provide such a tool which shall besimple and efficient to operate and cheap and convenient to manufacture.

More specifically, my invention comprises a manually operable tool ofthe forceps or pincers type, comprising a body portion having a taperingopening passing longitudinally therethrough, and having, at one endthereof a solid ringshaped portion of resilient material. The sides ofsaid body portion are spaced by slots passing through the walls of thebody portion. The inner faces of the sides of the body portion form thefaces which are adapted to engage the radio tube to be handled. At theopposite end of the body portion, from the ring, there are mounteddivergent handles which form means for manually operating the device.

Other objects of the invention will appear more fully hereinafter.

For a further description of my invention, reference may be had to theannexed drawing and specification at the end whereof the novel featuresof my invention will be specifically pointed out and claimed.

In the drawing Fig. 1 is a side elevation,

Fig. 2 is a side elevation at right angles to Fig. 1, and

Fig. 3 is an end View.

In that embodiment of my invention selected from among others forillustration in the drawing and description in the specification, mydevice is shown as comprising a body portion gen erally indicated at I,having at one end thereof an integral continuous ring 2.

Body portion I has a tapering opening 3 passing longitudinallytherethrough and longitudinally extending slots 4 pass through the wallsof body portion and extend rearwardly from ring 2 separating the majorportion of the body portion into two oppositely disposed parts. Theinner spaces of said oppositely disposed parts form work engagingportions adapted to contact and grab the surface of the metal radio tubeto be handled. At the opposite end of said body portion from the ring 2there are provided handies 6 which are spaced apart by means of slotsAl, and which diverge from each other.

The operation of my device is believed to be obvious from the foregoingdescription. For the purpose of inserting or extracting a metal radiotube into or out of the socket adapted to receive it, the tube is placedin the body portion with the prongs extending from the open end of thetool beyond the ring. By grasping the handle with the fingers and thepalm of the hand a variable pressure may be exerted lightly on the wallsof the radio tube. The tube can then be extracted or inserted even froma diincult or inaccessible location.

Having now set forth the object and mode of operation of my inventionand the various constructions embodying the principles thereof, What Inow claim as new and useful and of my own invention is as follows:

1. Forceps for handling metal radio tubes comprising, a tubular bodyportion of resilient material having a tapering opening passinglongitudinally therethrough and having longitudinally extending slotsthrough its opposite sides, there being an uninterrupted ring adjacentone end of said body portion, the inner walls of said body portionintermediate said slots forming faces adapted for engagement with aradio tube to be handled, and handles mounted on said body portion atthe opposite end from said ring and spaced apart by said slots anddiverging from each other away from said body portion.

2. In a metal-radio-tube-handling extractor, a pair of oppositelydisposed and resiliently connected contact members, said contact membersbeing provided with flaring internal faces forming the work-engagingportions, a resilient ring connected to one of the ends of each of saidcontact members so that said members are held apart for flexing movementtoward and away from each other and the axis of said ring, and a pair ofoperating elements, each of said elements being secured at one end tothe end of one of said contact members away from said ring, and lying atan angle to the other of said contact members, whereby the operatingelements may be grasped respectively by the fingers and palm of the handof the user to flex said work-engaging portions toward and away fromeach other and into and out of engagement with a radio tube to behandled, said fiexure being permitted by means of the resiliency of saidring.

THEODORE E. CASSELBERRY.

